mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-01-11 18:05:37 +00:00
Code Issues 1 Projects Releases Wiki Activity

ges/ges-track-transition.{c,h}: add support for other wipes with smptealpha

Browse source
This commit is contained in:
Brandon Lewis 2010-05-26 16:36:24 +02:00 committed by Edward Hervey
parent 48eeb8d913
commit 1d3d367e75
2 changed files with 59 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

69
ges/ges-track-transition.c
View file

@ -46,8 +46,8 @@ ges_track_transition_update_controller (GESTrackTransition * self,
GValue end_value = { 0, }; GValue end_value = { 0, };
g_value_init (&start_value, G_TYPE_DOUBLE); g_value_init (&start_value, G_TYPE_DOUBLE);
g_value_init (&end_value, G_TYPE_DOUBLE); g_value_init (&end_value, G_TYPE_DOUBLE);
g_value_set_double (&start_value, 0.0); g_value_set_double (&start_value, self->start_value);
g_value_set_double (&end_value, 1.0); g_value_set_double (&end_value, self->end_value);
GST_LOG ("setting values on controller"); GST_LOG ("setting values on controller");
@ -108,7 +108,7 @@ ges_track_transition_finalize (GObject * object)
G_OBJECT_CLASS (ges_track_transition_parent_class)->dispose (object); G_OBJECT_CLASS (ges_track_transition_parent_class)->dispose (object);
} }
GstPad * GObject *
link_element_to_mixer (GstElement * element, GstElement * mixer) link_element_to_mixer (GstElement * element, GstElement * mixer)
{ {
GstPad *sinkpad = gst_element_get_request_pad (mixer, "sink_%d"); GstPad *sinkpad = gst_element_get_request_pad (mixer, "sink_%d");
@ -119,7 +119,21 @@ link_element_to_mixer (GstElement * element, GstElement * mixer)
gst_pad_link (srcpad, sinkpad); gst_pad_link (srcpad, sinkpad);
return sinkpad; return G_OBJECT (sinkpad);
}
GObject *
link_element_to_mixer_with_smpte (GstBin * bin, GstElement * element,
GstElement * mixer, GEnumValue * type)
{
GstElement *smptealpha = gst_element_factory_make ("smptealpha", NULL);
g_object_set (G_OBJECT (smptealpha),
"type", (gint) type->value, "invert", (gboolean) TRUE, NULL);
gst_bin_add (bin, smptealpha);
gst_element_link_many (element, smptealpha, mixer, NULL);
return G_OBJECT (smptealpha);
} }
static gboolean static gboolean
@ -141,11 +155,33 @@ ges_track_transition_create_gnl_object (GESTrackObject * object)
"tr-csp-b"); "tr-csp-b");
GstElement *oconv = gst_element_factory_make ("ffmpegcolorspace", GstElement *oconv = gst_element_factory_make ("ffmpegcolorspace",
"tr-csp-output"); "tr-csp-output");
GstElement *mixer = gst_element_factory_make ("videomixer", NULL);
gst_bin_add_many (GST_BIN (topbin), iconva, iconvb, mixer, oconv, NULL); gst_bin_add_many (GST_BIN (topbin), iconva, iconvb, oconv, NULL);
GstPad *a_pad = link_element_to_mixer (iconva, mixer);
GstPad *b_pad = link_element_to_mixer (iconvb, mixer); GObject *target = NULL;
gchar *propname = NULL;
GstElement *mixer = NULL;
mixer = gst_element_factory_make ("videomixer", NULL);
g_object_set (G_OBJECT (mixer), "background", 1, NULL);
gst_bin_add (GST_BIN (topbin), mixer);
if (self->type) {
link_element_to_mixer_with_smpte (GST_BIN (topbin), iconva, mixer,
self->type);
target = link_element_to_mixer_with_smpte (GST_BIN (topbin), iconvb,
mixer, self->type);
propname = "position";
self->start_value = 1.0;
self->end_value = 0.0;
} else {
link_element_to_mixer (iconva, mixer);
target = link_element_to_mixer (iconvb, mixer);
propname = "alpha";
self->start_value = 0.0;
self->end_value = 1.0;
}
gst_element_link (mixer, oconv); gst_element_link (mixer, oconv);
GstPad *sinka_target = gst_element_get_static_pad (iconva, "sink"); GstPad *sinka_target = gst_element_get_static_pad (iconva, "sink");
@ -164,15 +200,14 @@ ges_track_transition_create_gnl_object (GESTrackObject * object)
/* set up interpolation */ /* set up interpolation */
g_object_set (G_OBJECT (b_pad), "alpha", (gfloat) 0.0, NULL); g_object_set (target, propname, (gfloat) 0.0, NULL);
GstController *controller; GstController *controller;
controller = gst_object_control_properties (G_OBJECT (b_pad), "alpha", controller = gst_object_control_properties (target, propname, NULL);
NULL);
GstInterpolationControlSource *control_source; GstInterpolationControlSource *control_source;
control_source = gst_interpolation_control_source_new (); control_source = gst_interpolation_control_source_new ();
gst_controller_set_control_source (controller, gst_controller_set_control_source (controller,
"alpha", GST_CONTROL_SOURCE (control_source)); propname, GST_CONTROL_SOURCE (control_source));
gst_interpolation_control_source_set_interpolation_mode (control_source, gst_interpolation_control_source_set_interpolation_mode (control_source,
GST_INTERPOLATE_LINEAR); GST_INTERPOLATE_LINEAR);
@ -208,10 +243,16 @@ ges_track_transition_init (GESTrackTransition * self)
{ {
self->controller = NULL; self->controller = NULL;
self->control_source = NULL; self->control_source = NULL;
self->type = NULL;
self->start_value = 0.0;
self->end_value = 0.0;
} }
GESTrackTransition * GESTrackTransition *
ges_track_transition_new (void) ges_track_transition_new (GEnumValue * type)
{ {
return g_object_new (GES_TYPE_TRACK_TRANSITION, NULL); GESTrackTransition *ret = g_object_new (GES_TYPE_TRACK_TRANSITION, NULL);
ret->type = type;
return ret;
} }

5
ges/ges-track-transition.h
View file

@ -53,6 +53,9 @@ G_BEGIN_DECLS
GESTrackObject parent; GESTrackObject parent;
GstController *controller; GstController *controller;
GstInterpolationControlSource *control_source; GstInterpolationControlSource *control_source;
GEnumValue *type;
gdouble start_value;
gdouble end_value;
}; };
struct _GESTrackTransitionClass { struct _GESTrackTransitionClass {
@ -61,7 +64,7 @@ struct _GESTrackTransitionClass {
GType ges_track_transition_get_type (void); GType ges_track_transition_get_type (void);
GESTrackTransition* ges_track_transition_new (void); GESTrackTransition *ges_track_transition_new (GEnumValue * type);
G_END_DECLS G_END_DECLS